Update README.md

README.md

@@ -310,6 +310,9 @@ Training episode data (actions, visual inputs, and other sensor data) for 8 task
 
 Please note that every package indexed by the parquet files can contan several instances of episode data.
 
+We also provide an extension dataset for `FrankaPickAndPlace` (not used to train any of our shared models) with additional object types:
+- FrankaPickAndPlaceOmniCamConfig_ObjectBackfill
+
 ## Data access
 
 We recommend to use [bulk_download.py](bulk_download.py).